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9 February, 15:55

Cos (sin^-1 (24/26)

Use a sketch to find the exact value of the following expression

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Answers (1)
  1. 9 February, 16:02
    0
    Hello,

    Let y=sin^ (-1) (12/13.

    ==>sin y=12/13

    ==>cos y=√ (1 - (12/13) ²) = √ (25/169) = 5/13

    Answer 5/13
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